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Segment Information (Tables) | 12 Months Ended
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Dec. 31, 2012
Segment Reporting Information, Additional Information [Abstract] |
Schedule of Product Category Information [Table Text Block] | Net sales for the product categories are attributed based on those revenues related to sample and assay products and similarly related revenues, and revenues derived from instrumentation sales.
(in thousands) | 2012 |  | 2011 |  | 2010
Net Sales |  |  |  |  |
Consumables and related revenues | $ | 1,085,596 |  |  | $ | 1,011,863 |  |  | $ | 937,714 |
Instrumentation | 168,860 |  |  | 157,884 |  |  | 149,717 |
Total | $ | 1,254,456 |  |  | $ | 1,169,747 |  |  | $ | 1,087,431 |
Schedule of Geographical Information [Table Text Block] | Our official country of domicile is the Netherlands, which reported net sales of $23.7 million, $23.9 million and $21.5 million for the years ended 2012, 2011 and 2010, respectively, and these amounts are included in the line item Europe as shown in the table below.
(in thousands) | 2012 |  | 2011 |  | 2010
Net Sales |  |  |  |  |
Americas: |  |  |  |  |
United States | $ | 518,130 |  |  | $ | 466,502 |  |  | $ | 472,682 |
Other Americas | 42,921 |  |  | 55,137 |  |  | 50,912 |
Total Americas | 561,051 |  |  | 521,639 |  |  | 523,594 |
Europe | 459,321 |  |  | 444,441 |  |  | 398,029 |
Asia Pacific & Rest of World | 234,084 |  |  | 203,667 |  |  | 165,808 |
Total | $ | 1,254,456 |  |  | $ | 1,169,747 |  |  | $ | 1,087,431 |
Schedule of Long Lived Assets [Table Text Block] |
(in thousands) | 2012 |  | 2011
Long-lived assets |  |  |
Americas: |  |  |
United States | $ | 131,689 |  |  | $ | 98,717 |
Other Americas | 2,196 |  |  | 2,579 |
Total Americas | 133,885 |  |  | 101,296 |
Europe | 272,227 |  |  | 259,220 |
Asia Pacific & Rest of World | 12,820 |  |  | 11,276 |
Total | $ | 418,932 |  |  | $ | 371,792 |

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